Question Discussion & Solution

Hence, there is one such digit.

Option(2) is correct.

Argument I: Yes, banning will reduce misuse: No, definitely not, banning mobile phones is not a solution as the Mobile phone is used for several purposes, for study, for payment, and more, So the argument I is not strong.

Argument II: No, it will have only a very limited impact: Moblie phone has several benefits, Online classes, useful videos, internet banking, etc. it is the very useful and very low impact of missuse.So, argument II is strong.

Hence, the correct answer is an option(2)i.e., Argument II is strong.

According to given information,

Whatever be the distance covered by the person, when the man stops he is facing south.

Hence, the answer is ‘South’.

After reading statement and conclusions we decide that -

i) All women are scientists.→ False 

ii) All scientists are women.→ False

Hence, option 4 is the correct answer.

Concepts:

Physical Properties of Metals and Non-metals

Explanation:

• Iodine is lustrous. This is an exception to the physical properties of non - metals. Iodine is non-metal and non - metals have dull appearance. 
• Sodium is metal. Metals are usually hard so this is also an exception. 
• Graphite conducts electricity. This is an exception as graphite is a form of carbon and it is non - metal. 
• Copper being metal is not an exception as it is metals and metals are good conductors of heat. 

So the correct option is 'Copper is a good conductor of heat.'